prEN IEC 61300-2-29:2026

• Status: Not Published
• Publication Date: 16-Jan-2028
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: CLC/TC 86BXA - Fibre optic interconnect, passive and connectorised components
• Current Stage: 4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
• Start Date: 18-Sep-2026
• Completion Date: 18-Sep-2026
• Ref Project: oSIST prEN IEC 61300-2-29:2026 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-29: Tests - Low air pressure

• Revises: EN 61300-2-29:1997 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-29: Tests - Low air pressure
• Effective Date: 21-Oct-2025

Overview

prEN IEC 61300-2-29:2026 is a draft international standard developed by the IEC, under subcommittee 86B (Fibre optic interconnecting devices and passive components). This document specifies standardized procedures for testing the performance of fibre optic interconnecting devices and passive components under conditions of low air pressure. This test is fundamental for ensuring product robustness and reliability, particularly for applications where optical components are exposed to reduced atmospheric pressures, such as in aerospace or high-altitude environments.

The standard details comprehensive steps for test preparation, measurement, and reporting, providing valuable guidance for manufacturers, testing laboratories, and quality assurance teams working with fibre optic technology.

Key Topics

• Test Purpose: Establishes a method to evaluate how fibre optic devices and components respond to low air pressure conditions.
• Test Procedure: Defines detailed steps including device preparation, preconditioning, initial and final measurements, pressure reduction, exposure period, and recovery.
• Apparatus Requirements: Specifies the test chamber and optical measurement equipment necessary for obtaining valid results.
• Severity of Test: Outlines acceptable air pressure values (as low as 5.5 kPa, representing altitudes up to 20,000 m) and exposure durations for the test, selected according to specific product requirements.
• Measurement Parameters: Focuses on key optical characteristics such as attenuation and return loss to assess performance changes during and after exposure.
• Reporting: Lists the details that must be documented in the test report, including device under test (DUT) characteristics, test conditions, procedures followed, measurements taken, and any deviations or additional criteria used.
• Reference to Other Standards: The document references related standards within the IEC 61300 and IEC 61753 series for performance and measurement details.

Applications

The IEC 61300-2-29:2026 low air pressure test is critical for a wide range of practical scenarios in fibre optic communications, including:

• Aerospace and Aviation: Ensures fibre optic connectors, cables, and passive components maintain performance and integrity at high altitudes, where atmospheric pressure is significantly reduced.
• Telecommunications Infrastructure: Assesses the reliability of optical components in installations such as mountain top base stations, remote relay sites, or high-rise buildings.
• Industrial and Military Use: Validates device durability in environments subject to variable or harsh atmospheric conditions, contributing to mission-critical reliability.
• Quality Control and Product Development: Provides manufacturers with a methodology for verifying that products meet international performance benchmarks under challenging environmental conditions.
• Laboratory Testing: Enables consistency in the evaluation of fibre optic components, supporting objective comparison, certification, and market access.

By consistently following IEC 61300-2-29:2026, organizations can demonstrate compliance with international quality standards and increase the market acceptance of their fibre optic products.

Related Standards

• IEC 61300-1: Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance.
• IEC 61300-3-1: Visual examination procedures for fibre optic components.
• IEC 61300-3-3, IEC 61300-3-4, IEC 61300-3-6: Standards covering attenuation, return loss, and monitoring procedures during testing.
• IEC 61753 (all parts): Performance standards for fibre optic interconnecting devices and passive components.
• IEC 60721-2-3:2013: Classification of environmental conditions, particularly air pressure altitudes.
• IEC 60068-1: General guidance for environmental testing.

Adhering to prEN IEC 61300-2-29:2026 supports reliable testing methodologies, promotes interoperability, and ensures fibre optic components are fit for use in varied and demanding environments.

SLOVENSKI STANDARD
01-september-2026
Optični spojni elementi in pasivne komponente - Osnovni preskusni in merilni
postopki - 2-29. del: Preskusi - Nizek zračni tlak
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-29: Tests - Low air pressure
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und
Meßverfahren - Teil 2-29: Prüfungen: Niedriger Luftdruck
Dispositifs d'interconnexion et composants passifs à fibres optiques - Méthodes
fondamentales d'essais et de mesures - Partie 2-29: Essais - Basse pression
atmosphérique
Ta slovenski standard je istoveten z: prEN IEC 61300-2-29:2026
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

86B/5235/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61300-2-29 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-06-26 2026-09-18
SUPERSEDES DOCUMENTS:
86B/5148/CD, 86B/5182A/CC
IEC SC 86B : FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS
SECRETARIAT: SECRETARY:
Japan Mr Ryo Koyama
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
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This document is still under study and subject to change. It should not be used for reference purposes.
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submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-29: Tests - Low air pressure

PROPOSED STABILITY DATE: 2033
NOTE FROM TC/SC OFFICERS:
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IEC CDV 61300-2-29 © IEC 2026
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General description . 6
5 Apparatus . 6
5.1 Test chamber . 6
5.2 Optical measurement equipment . 7
6 Procedure . 7
6.1 Preparation of DUT . 7
6.2 Preconditioning . 7
6.3 Initial examination and measurements . 7
6.4 Low air pressure test and intermediate measurements . 7
6.5 Recovery . 7
6.6 Final examination and measurements . 7
7 Severity . 8
7.1 Air pressure . 8
7.2 Duration of exposure . 8
8 Details to be specified and reported . 8
Bibliography . 10

Table 1 – Air pressure and altitude . 8

IEC CDV 61300-2-29 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Fibre optic interconnecting devices and passive components - Basic test
and measurement procedures -
Part 2-29: Tests - Low air pressure

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